Question

Can someone help me please

Answer 1

Answer:

h = 7.7 cm

Step-by-step explanation:

Since the triangle is right use the sine ratio to find h

sin31° = $\frac{opposite}{hypotenuse}$ = $\frac{h}{15}$

[ multiply both sides by 15 ]

h = 15 × sin31° = 7.7 cm ( to 1 dec. place )

Answer 2

Answer:   h = 7.7 cm

Step-by-step explanation:

We know that θ = 31°, the hypotenuse = 15 cm, and we are looking for the opposite side = h.

$sin\ \theta=\dfrac{opposite}{hypotenuse}\\\\\\sin\ 31^o=\dfrac{h}{15}\\\\\\\text{multiply both sides by 15 to get:}\\15\ sin\ 31^o=h\\\\.\qquad 7.72 = h\\\\\\\text{rounded to one decimal place we get:}\\h = 7.7$